Why is the disagreement suddenly on everything?
Because the business outgrew the unspoken agreement.
Early on, decisions were small and aligned by default.
The business is bigger now.
The decisions are higher-consequence.
The unspoken agreement that worked at $500K does not work at $5M, and nobody renegotiated it.
The agreement was sized for a smaller business. The business outgrew it.
What needs to be renegotiated
Not equity. Authority. Who is allowed to close what kind of decision, at what threshold, without the other partner's sign-off. Most co-founder agreements never wrote this down.